Oral sleep appliance



FIG. 1 is a front perspective view of an oral sleep appliance.

FIG. 2 is a front elevation view of the invention.

FIG. 3 is a rear elevation view of the invention.

FIG. 4 is a bottom plan view of the invention.

FIG. 5 is a right side elevation view of the invention.

FIG. 6 is a top plan view of the invention; and,

FIG. 7 is a left side elevation view of the invention. 

CLAIM The ornamental design for an oral sleep appliance, as shown and described. 